Improvement in millstone-picks



. T. R. WAY.

Mill-Stone Picks.

Patented August 5,

11111"l ynnllllllll rrnD STATES THOMAS R. WAY, OF SPRINGFIELD, OHIO.

IMPROVEMENT IN MlLLSTONE-PICKS.

Specification forming part of Letters Patent No. 141,613, dated August5, 1873 application filed April 5, 1873.

To all 'whom it may concern Be it known that I, TrroMAs R. WAY, ofSpringfield, in the county or" Clarke and State of Ohio, have inventedcertain Improvements in Millstone-Picks, of which the following is aspecification:

My invention consists in a novel manner of constructing the holder orbody, and in combining therewith a reversible blade, tempered andsharpened at both ends.

Figure lis a vertical central section through my pick, and Fig. 2 an endview of the same.

In constructing my pick I make a rightangled body7 A, having one of itsarms, a., adapted to receive the cutting-blade B, and the other arm, b,adapted to receive the handle G. The outer face of the arm ci, againstwhich the blade rests, is made with a flat face, c, and is provided withside ilanges or lips d extending out past the edges of the blade to holdit from moving laterally. Between the anges or lips el I pivot aneccentric or cam lever, D, and under said lever I mount an archedspring-plate, E, provided at its upper end with ears e, which fit intonotches in the ilanges d, so as to hold the plate in'place. I providethe flat face c, under the upper end of the spring-plate E, with a stud,F, to it into the blade and hold it from moving endwise. The blade isprovided with a number of holes, g, to receive the stud, so that it maybe moved up and down and fastened at different points, as may berequired. The blade is inserted under the plate D and pressed down, sothat the stud enters one of the holes g, and then the cam-lever turneddown, as shown, so as to force the plate E down firmly and hold theblade securely in place against the iiat face c. The plate holds theblade 'down on its seat, the lianges d hold it from moving laterally,and the stud F holds it so that it cannot possibly play endwise. Theblade is tempered and sharpened at both ends, and so constructed thatwhen one end is worn it may be taken out and reversed, and the other endused, and thus the entire blade utilized. In order to release the blade,so that it may be adjusted up or down, or reversed, or removed andreplaced by another, it is only necessary to turn the camlever up, andthen raise the bladefrom the stud. By clamping the blade at the middleand lower end, and with the spring-plate, itis prevented from vibratin gand allowed a slight springing movementin the head or body, so thatthereis no danger of the breakage which so frequently takes place in thepresent picks, which have their blades secured rigidly, and held eitherat the middle alone or at the middle and upper end. It will be seen thatunder my arrangement it is absolutely impossible for the blade to moveendwise unless a breakage of the stud occurs ,f that the blade isreadily and easily inserted, removed, and adjusted; that both ends ofthe blade are left entire, so that they can both be sharpened and usedby reversing they blade in the body or holder 5 that there is lessdanger than usual of breaking the blade; and that, as the holes occupyonly a short portion ofthe blade, it can be almost entirely utilized.

The stud F may be castor forged on the body, or screwed in from theback, as shown, or set in from the face, or secured in any othersuitable' manner. It is considered best, however, to screw it in, asshown, for the reasons that it can then be hardened, and can be removedand another substituted when it becomes worn. Instead of usingthesinglestudpassing through the middle of the blade, the blade may haveits edges notched and two studs employed to fit therein. The handle Cofthe pick is inserted into the hollow skeleton-arm b of the body andsecured by a cam-lever, Gr, and a spring-plate, H, placed thereunder, asshown. This arrangement permits ythe handle to be readily attached anddetached, and allows the body to play or spring, so as to relieve thejar and strain; but, as it is shown in a case heretofore filed by me, itconstitutes no part of the present invention.

It will be seen, on reference to Fig. l, that the handleis attached tothe upper end of the body, and that consequently nearly the whole weightis below the handle. This arrangement causes the pick to hang naturallyin the proper upright position when in use, so that it is handled withfar more ease and accuracy than those of the ordinary form.

Having thus described my invention, what I claim is- 1. The head or bodyA provided with the stud F, in combination with the blade B and thecam-lever D, or equivalent fastening de-V vice.

2. The head A provided with the studF and cam-lever D, in combinationwith Jthe blade B and spring-plate E, substantially as shown anddescribed.

3. A millstone-pick having its handle at tached at or near the upper endof the head or body, in order that the Weight may be below the handle,as and for the purpose described.

4. In combination with the body o1' holder, constructed as described,the double-ended reversible blade provided with a series of holes orrecesses to receive the fastenin g-stud.

THOMAS R. WAY.

Witnesses:

WALTER L. WEAVER, WALTER E. NEWELL.

